/*
 * (C) Copyright 2006-2016 Nuxeo SA (http://nuxeo.com/) and others.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Contributors:
 *     Florent Guillaume
 */
package org.nuxeo.ecm.core.storage.sql.security;

import java.security.Principal;

import org.nuxeo.ecm.core.api.security.ACP;
import org.nuxeo.ecm.core.api.security.Access;
import org.nuxeo.ecm.core.model.Document;
import org.nuxeo.ecm.core.query.sql.model.SQLQuery.Transformer;
import org.nuxeo.ecm.core.security.AbstractSecurityPolicy;
import org.nuxeo.ecm.core.security.SecurityPolicy;

/**
 * Dummy security policy denying all access to File objects.
 *
 * @author Florent Guillaume
 */
public class NoFileSecurityPolicy extends AbstractSecurityPolicy implements SecurityPolicy {

    @Override
    public Access checkPermission(Document doc, ACP mergedAcp, Principal principal, String permission,
            String[] resolvedPermissions, String[] additionalPrincipals) {
        if (doc.getType().getName().equals("File")) {
            return Access.DENY;
        }
        return Access.UNKNOWN;
    }

    @Override
    public boolean isRestrictingPermission(String permission) {
        return true;
    }

    @Override
    public boolean isExpressibleInQuery(String repositoryName) {
        return false;
    }

    @Override
    public Transformer getQueryTransformer(String repositoryName) {
        throw new UnsupportedOperationException();
    }

}
